Quick and easy solution is to tie a loop of line through your reefing point. This loop will hang down far enough and can be put through your reefing hook. Basically it's a poor man's dogbone and quick to rig up. I put them on my mainsail while underway in order to make reefing quicker and easier.

A fisherman's bend is a good know for this and 7-8mm cord would probably be a good choice. You'll have to experiment with the length a little.

Medsailor

You have to bring the reefing tack to the boom or the whole foot of the reefed main will be fat and twisted. Both the reefing clew and tack need to pulled to the boom, or you will have a mess. The foot of the reef needs to pulled both down and out.